Tire for vehicle-wheels.



Patented Sept. 2'6, |899. F. LATIMER.

TIRE FOR VEHICLE WHEELS.

(Applicmcnm med Apr. 3, 1899.)

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@www WW (No Model.)

NiTnD STATES PATENT Oferton.,

FRANK LATIMER, OF HUNTLEY, ILLINOIS.

TIRE FOR VEHICLE-WHEELS.

SPECIFICATION forming part of Letters Patent N 0. 633,652, dated September 26, 1899.

Application filed April 3, 1899. Serial No. 711,519. (No model.)

To all whom it may 00u/cern.'

Be it known that I, FRANK LATIMER, of Huntley, Illinois, have invented certain new and useful Improvements in Tires for Vehicle-Wheels, of which the following is a speciiication.

My invention relates particularly to that class of tires for vehicle-wheels known'as cushion-tires -tires in which a cushioning material or materials are used and in which a space or spaces are left for the purpose of providing for and permitting the displacement of the cushioning material.

rlhe object of my invention is to provide a simple, economical, and efcient cushion-tire for veliicle\vheels; and the invention consists in the features, combinations, and details of construction hereinafter described and claimed.

In the accompanying drawings, Figure lis a sectional broken view of a port-ion of a tire constructed in accordance with my improvements, and Fig. 2 a cross-sectional view taken on line 2 of Fig. l,

In constructing a tire in accordance with my improvements I make an inner tube or core A of the desired diameter and length and which is preferably formed of rubber or other similar cushioning material. It is well known in this art that where ahollow tube is used as the core of a tire when displacement takes place the tire is usually iiattened out so as to bulge out the sides considerably and is therefore liable to be cut by the rim, and where metal strips or springs are used this abnormal displacement which takes place results in trituration ot' the contiguous surfaces and the rapid deterioration of the tire. In order to prevent this objectionable feature, I provide the inner core of the tire with what I call a strut7 portion u, which extends diametrically across the same, so that when pressure is applied to the tread a of the tire a depression is permitted to take place, while very little expansion takes place. This strut portion divides the inner core into two longitudinal chambers a2 and a3, each of which is provided with a lining ai of textile fabric or other similar material.

To assist in the cushioning effect of the tire and in lengthening the life of the same, I provide a helical spring B, which is preferu ably wound around the core, as shown in Fig. l, so as to form a compound spring. Be-V tween the coils of this compound spring are wound silk or linen threads O, coated or provided with a solution of tacky rubber, which fills all the space between the springs. Outside of these springs and the helical windings of thread or similar element I provide a Second layer of rubbercoated silk or linen threads D, which are wound the length of the tire in one direction and then backthat is, instead of being wound around helically and in contiguous coils, like a helix, so as to cover all the space, it is Wound perhaps once or twice around the springs the entire length of the tire-say fourteen feet-and then back again, and so on back and forth until the springs are completely covered by a layer of threads crossing each other in many places in a crisscross manner-not like a woven fabric, but simply by independent threads. l

To form the outer casing, asheath E, formed of rubber or similar material,is molded around the tire in any of the usual manners and the whole vulcanized together in one operation.

The advantages incident to a tire constructed in accordance with my improvements are, first, that the construction of the inner core prevents undue abnormal distortion of the tire and minimizes the danger of rim-cutting, and, second, the peculiar Windings of the two layers of threads embed the spring in a fabric of such construction that the danger of cutting by the springs is reduced to a minimum.

I clair l. In a tire of the class described, an outer sheath or casing, a spring or springs inside the casing and the inner tube or hollow core provided with a strut extending diametrically across the same to prevent undue distortion of the tire, substantially as described.

2. In a tire of the class described, the combination of an outersheath or casing, an inner tube or core, a helically-coiled spring wound around the inner tube or core so as to provide a compound helically-wound spring, rubber covered threads helically wound around the spring, and rubber-covered threads wound back and forth around the spring and helical threads and between them and the outer sheath or casing so as to provide a complex ICO crisscross covering for the springs, substantially :is described.

3. In a Lire of the class described, the conibinatiou of an outer sheath or easing, an inner tube or hollow core provided Wibh a diametrieal strut, a heliczillycoiled spring wound around lche inner tube or core so as to provide a compound heliczilly-Wound spring, rubber covered threads helieally Wound ro around the spring, rubber-covered threads wound back sind forth around the spring and helical threads and between them and the outer sheath or casing so as to provide a complex crisseross covering for the springs, substantially as described.

FRANK LATIMER.

Vitnesses:

THOMAS F. SHERIDAN, THOMAS B. MCGREGOR. 

